Diameter-stop for machine-tools.



W. SCHELLENBACH. DIAMETER sfroPFoa MACHINE TOOLS,

APPLICATION FILED JULY 1| 19l3.`

1,094,601 A Patented A1;ur28,'1914. y l 2 SHEETS-SHEET l.

Inl/enfar:

i l M/WSMMMLMM Mafia/4A W. SGHELLENBAOH. DIAMETER STOP FOR MACHINE TOOLS. APPLICATION FILED JULY 1, 1913.

1,094,601, l Patented Apr: 28, 1914. I 4 2 SHEETS-SHEET 2. y

Illy@ 4a ,g .g y 7 Z f I4 l w/inlssas Inventar z MAb-MM5 gm QQWKM- @y MM'M^M Mib/niej@ I l WILLIAM SCHELLENBACH, 0F WYOMING, OHIO.

DIAMETER-STOP FOR MACHINE-TOOLS.

. To all/whom 'it may concern.'

lBe it known that I, iViLLL-iiii SCHELLEN- nAr'Ii, a citizen of the United States. resid- ;ing at W'yoming. in the county of Hamil- .tonand State of Ohio` have invented certain new and useful Improvements in Dianieter-Stops for Machineffools, of which the following isa specification. y

I.. My invention relates to a lstop mechanism for the cutter of a machine tool.

One of the objects of the invention is to provide` in connection with a feed-screw shaft longitudinally adjusting a tool holder, a mechanism independently Ydriven by the feed-screw` shaft having provision for lockingthe screw against rotation at predeterf mined points correspondingtothe position of the tool holder.

Another object:- of this inventionis to provide a tool holder operated .from one p01'- t-ion of the feed shaft and a driven member operated from another portion of the shaft,

. side of the' `and providing stops fory said independently dri-venA member interl'ocltiiie;V the screw against rotation at predetermined positions of the tool holder. y

, 4 Another object ot' the invention is to' pro- Avide astop mechanism disposed entirely ontpath ot` movement'of the tool@ holder. v i Another object of the invention is .to pro# V.vide means for dirertly"stopping the rotation lof the feed shaft orprime-mover, instead ot indirectly stopping itl by bringing the tool-holder into eontaetv with the Istop poi sitioned in its pa-t'h ot' travel.

Anotherlobjeet of the invention is to provide aerurate and positive stop' mechanism .adaptable for either external orA internal diameter cutting, and which vcan lbe readily rendered operative or inoperative without any disorganization of the meehanism.

'l`he features'of the invention are more "fully set toi-th `in eonnei'tion with the de- Y rover removed.' 'y ltif seription of the `ari-ompanyi'nY drawings `forming :i part ot this speritieation.and

disclosing' one. ot' the preferred embodiments ot' theinveiitlonlwherein:Vv

Figure l is :i plan view showing in v improvementapplied to the carriaife ot' a lathe.

Fig. Il is a plan view of my improvementwith a housingv At is a central vertiea'l` Fig'. :itis :i front elevation.

seetion-through liigz'. L ligr. o is a section on liuenr-ai ot hre'. l.

While my improvement is readily adapt- Speciication of Letters Patent.

Patented Apr. 2S, 19M..

Application filed July 1. 1913. Serial No. 776,759.

able to various types of machine tools` it has special utility in conneet'ion with lathe, work for diameter cutting, and l have illustrated the improvement as applied to a lathe carriage, although this is a matt-er of seleetioin and not a limitation of the prin# ciples of the invention.

In 141g. 1 represents a carriage having the cross-slide i2. upon which the tool-holder 3 is guided7 carrying,r the tool post 4 of thev carriage, and turns in a bearing sleeve or' bushing 10 screired into'the earrtiage, vthis sleeve lt) forming a support for vthe stop mechanism. 'lhe hand-feed l1 is shown fixed to the front end of the ieedeerew shat't. At the endof the sleeve 1,0 I place a spiral gear 12 loose on the serewsliaft portion t). 13 represents a sleeve, fixed to the forward end of the shaft portion 9, and ll isa clutch member splined` thereto adapted f to be moved longitudinally of thesleeve so as'to rotatively eonneet or disconnect said spiral gear l2 with the feed-screw shaft. lolted to the sleeve 10 is a casting l5 earrying' in v improved stop iiierliiiiiisiii. 'lhe casting 15 is formed with a sleeve 16 extendingr transversely to the 'feed-screw shaft, havingta housing Vportion l? for the spiral gear '12. A rotarymember 18 is rotatively mounted upon a shaft but restrained from endwise movement. The rotary nieinher 1S is formed with spiral threads 1t) upon its intermediate portion intermeshing with thel lspiral gear 12. The member l18 and gear l2 rotate at right angles to one another by reason of the angular relationship of their interineshing surfaces. "henieinber 1S is also formed with the external .si-rewthreads 2t) at.' theY opposite ends thereof.

'llie screw-threads .20 iiitermesh with the Vuela teeth l ot' a reciprocating member .22 longitudii'iallv guided on the upper sui-tare ot' the sleeve t6. 323 represents an upper housing' cover. lseruredto the nesting i5. ,l'rel'ei'ably l provide the reUiiIJrGCat-ingis" same, constituting adjustable surfaces 'for' engaging the stops. Passing through the sleeve 16 is a spindle 25 carrying disks 26l at the outer ends thereof, each of said disks having a series of adjustable stop bolt-s 27 screw-threaded therein, and set to represent the predetermined diameters to be eut.` If desirable, one of these stop bolts may remain unset for progressive cutting. The provision of the adjustable bolts 24 for the reciprocating member 22 gives a refinement of adjustment compensating for dilferentsettings or grindings of the tool. lThe spindle 25 may be rotatively adjusted to bring any one of the series of stops 27 into alinement with the reciprocating member 22, as shown in Fig'. 3, the duplication of the disks rendering available stops for either external or internal diameter Work. 28 represents an ordinary micrometer. The member 22 is n0nrotatable, has reciprocating, rectilineal motion transversely to the feed screw, and hence the stop is engaged with an end thrust, desirable in precision Work as well as heavy duty machine tools;

From this description it Will be seen that when the tool-holder is fed by the rotation of the handle 1l, the member 22 will be moved in an appropriate direction to bring its surface 24 intoeontact with a Selected stop 27 to be engaged and that when such Contact occurs the correlated abutting surfaces will be interlocked, instantaneously holding the fecd-screw shaft against rotative or endwise movement, thereby arresting the feed of the tool-holder at a position predetermined by adjustment of the selected stop which is engaged by the member 22. 1 lt will of course be understood. that the series of stops 27 are set to correspond to the series o1 steps or shoulders representing the diameters 'to be out. By the use of my improvement superior precision work will be produced as the stop is instantaneous and accurate, the operation being to stop the rotation of the feed =screw shaft directly at predetermined points representing predetermined positions of the tool. The instant the bolts 24 and 27 contact they otler resistance to the influence of tbc hand feed interlocking the abutting, motion-transmitting; surfaces in train from the feed-screw shaft to the driven mcn'iber 22. The stop mechanism is positioned entirely away from the path ot.' movement of the toolholdcr.-and is not located between the ways ot' the bed, where it 4would limit the capacity of' the machine, and be badly in"thc wayy when other classes ot' Work are beingperformed,

'With my improvement when classes ot work are beine, performed not requiringr the top mechanism, all that is necessary is to nnclntch the spiral'gear 12 from the feedscrew shaft, when the carriage and 'toolholder can be operated withontthe limitacan be successively performed with a. given' tool and on one piece of work.

It is readily apparent that the principle of this invention may be variously applied to y various types of machine tools without departing from the scope of the claims, except wherein the same arc. specifically limited in expressed terms topret'errcd embodiments of the invention.

In the proposed 'embodin'ient of the in` vention it is preferable that the feed controllingV or stop engaging' member, be a rectilineally, reciprocating. non-rotatable member, also preferably moving transversely relative to lthe screw shaft, but this is not the essence of the inventive principle.

In the class of work for which this improvement is primarily designed, it is important that the screw driven feed controlling;r or stop engaging' member shall have the capacity ot and proyision tor arrestingr its movement in any one of a plurality of fixed,

predetermined positions, successively available Without requiringr any readjustment of parts other than that of shiftingthe stops.

Having described my invention, I claim 1- l. ln a device of the nature disclosed, a tool-holder, a feed-screw therefor, a nonrotatable feed-screw driven-member, and means to be engaged by said non-rotatable member for locking' the screw against rotation at a predetermined position of` thc toolholder.

2. In a ydevice of he nature disclosed, a tool-holder, a feed-sciew therefor, a member nonrotatably reciprocated by the screw in dependent of the tool-holder, and engaging means .for said non-rotatable member to lock said screw against rotation at a lpredetermined position of the tool-holder.,

3. ln a device oi. the nature disclose'flpa feed-screw therefor. n first member drivtn by the screw, a second member non-rotatably reciprocatcd by the screw transversely thereto, and a stop for said non-rotatable member to lock the screw against rotation at a predetermined position of the first member.

4. ln a device of the nature disclosed. a rotary shaft, a first member reciprocated by ythc shaft longitudinally thereof, a second.

n'iomber non-rotatably reciprocatcd by the sha'lt transversely thereto, and n stop for said non-rotatable member arresting' the ro' lation of (he sli-att nt a predelerminml longitudinal position oll the lirsl member. i

lill) Loeaeoi 5. In a device of the nature disclosed, a hand-operated rotary shaft, a first member longitudinally adjusted on and by the shaft, a non-rotatable member transversely reeiprocated by the shaft to corresponding positions relative to the first member', and a plurality of stops adjustable in the motion path of the non-rotatable member arresting the rotation of the shaft at predetermined positions of the first member.

6. In a device of the nature disclosed, a rotary shaft, a first member taking motion from one portion of the shaft, a non-rotata ble rectilineally moving member taking motion from another portion of the shaft, and a stop for said second member, whereby thel movement of the first member in one zone of action is controlled'by the stopping of the non-rotatable member in a different zone of action.

T. In a device of the nature disclosed, a rotary shaft, a first member taking motion at one portion of the shaft, a non-rotatable reetilineally moving member taking motion from another portion of the shaft, and a series of delinitestops adapted tobe selectively engaged with said non-rotating member, whereby the movement of the first member in one zone of action is controlled by the stopping` of the non-rotatable member in a different zone of action.

S. In a device of the natu-re disclosed, a

rotary shaft, a first member adapted to be longitudinally reciprocated by' the shaft, a non-rotatable member taking motion from another portion of the shaft in directions corresponding to its rotation, and means for engaging said non-rotating member in either of its directions 'of movement to lock the shaft against rotation 'at a predetermined longitudinal position of the firstmember.

9. In a device of the nature disclosed, a rotary shaft, a first member moved by and longitudinally of the shaft` a nou-rotatable member vmoved by the shaft outside of and transversely to the path of travel of the first member, and means for arrestingr the motion .of tbe 'non-rotatable member at a predetermined position in the movement of the first member.

10. ln a device of the nature disclosed, a rotary shaft, a first member taking motion from one portion of the shaft, a nonrota table member taking rectilineal motion from anotberiportion of the shaft, said members having corresponding relative reotilineal movements, the nonrotatable member being relatively lower-speeded, and a stop for said noirrolatalile member arresting the rotation ol the rotary shaft, at a predetermined adjusled position of tbe first member.

ll. .ln a device of the nature disclosed, a hand-oprraled feedscrew shaft, a toolr holder longitudinally adjusted by and on the intermediate portion of the screw, ya nonrotatable member reciprocated by and atone end of the shaft,'fand a stop for saidnoir rotatable member interlocking the .screw against rotation at a predetermined position of the tool-holder. l

12. In combination With the tool-holder 'and hand-operated feed-screw of a machine screw-portion of the shaft, a member trans.

versely reciprocafed by one end of the shaft, and a stop for said member arresting the screw rotation at a predeterminedscreivcontrolled position of the tool-holder.

14. In a device of the class described, a feed screw, a first member operated by the screw-rotation in a selected field. a nonrotatable member transversely reeiprocated by the screw-rotation in an vindependent field. and a stop for said non-rotatable member arresting the screw-rotation at a predetermined position ofthe first member in its field of operation. l l

15. In a device of the nature disclosed, a support, a feed-serew-therein. a toolholder slide on the support longitudinally 'adjusted by 'the screw, a nou-i'i'itatable member reeiprocated by one end of the screw at the end of the suppe, t. and a stop on said support to be engaged by said non-rotatable member to lock the screw against rotation at a predetermined screw-controlled position of the tool-holder slide.

16. ln a device of `the nature disclosed. a support. a feed-screw therein. a tool-holder slide on the support longitudinally adjusted by the soreiv,/a reciprocating member at one end of the support operated by the vorresponding end ofthe iserew. and a series of definite stops adapte to bp selertivelv en gaged by said reciprocating member to arrest the rotation of the screw at a profielen minodfbsition of the tool-slide.

17. ln a device of the natur(` disclosed. a

support. a feed-screw therein. a tool-holden slide on the support longitudinally adjusted by the screw. a member on one end of the slide movableI transversely relatively to the looldioldor slide., motion transmission bi isoL ated by said rotary member, a stop for said reciprocating member, yand an adjustable stop-engaging member lon the reciprocating me nber.

Q0. In a device of the nature disclosed, a shaft, a. work performing member. means transforming the rotary shatt motion intorcctilineal motion of the work performing member, a feed controlling non-rotatable member, means transformingr the rotary motion of the shaft into reetilineal motion of the controlling member., and a stop'mechanism adjustable in the motion path ot the controlling men'iber.

21. In a device of the nature disclosed, a support, a rotary shaft. said support and shaft being formed with abutting surfaces closely confining endwise movement ol the shaft, a driven member` said sha lit and member having n'iotion transmission connection constituting abutting surfaces interlocking When the motion transmission is resisted, a non-rotatable member moved by said driven member having an engaging surface, a stop having a surface to be engaged in the path of movement ot said member whereby said correlated abutting surfaces are respectively clamped together to lock the sha tt against endivise and rotary motion in its support.

when said engaging surface is urged against the stop sui-tace, and a device independently adjusted by said shaft to positions determined by the point ot' contact ot the movable member and its cooperating stop.

Q2. In a device of the nature disclosed, support, a. rotary shaft, said support and shaft being formed n ith abutting surfaces closely confining endivise movement ot' the shaft, a driven member, said shaft and member having n'iotion transmission connection vconstituting abutting surfaces interlocking when the motion transmission is resisted, a member moved by said driven member having an engaging surface, a stop having a surface to be engaged in the path oi movement of said member whereby said correlated abutting surfaces are respectively clamped together to lock the, shaft against endwise and rotary motion in its support, when said engaging surface is urged against the stop surface, said support being independently adjusted by said shaft to positions detern'iincd by the point of contact ot the. movable member and its cooperating stop.

.. ln a (lt-vire, of the nature disclosed, z

support, a rotary shaft, said support and shaft being formed with abutting surfaces closelyconining the endvvisc movement of said shft, a rotary member, said shaft and member having angnlarly disposed, intermeshing, rotary motion trapsmission velements constituting abutting surfaces when the rotary influence is resisted. a member to be longitudinally reeiprocated by said `rotary member having appropriate motion transmission connection therewith constituting abutting surfaces when the longitudinal motion influence is resisted, a stop in the path of said reciprocal meniber, said mem ber and stop having surfaces to be abutted, whereby Said correlated abuttingsurfaces are respectively clamped together to lock the shaft against rotary and endvvisc movement in the support when .sa-id' reci proeating member is urged against the stop` and a device independently adjusted by said, shaft to positions determined by the point ot contact of said reciprocating element and stop.

2st. In a device 'ot the nature disclosed, a support, a feed screw shaft thereon, a 'tool holder guided on the support and engaging the sci-ovv. a rotary member geared to said shaft at one end olt the path oit-movement oi the tml-holder, a reciprocating member geared to the rota ry member, and an adjust` able member ha ving a series of stops to be selectively engaged by saidv reciprocating member, thereby locking the screw against' rotation and stopj'iing the feed at apredetermined position of the tool bolder.

95. In a device of the nature disclosed, a support, a feed screw shait't thereon, a tool holder guided on the support and engaging the screw` a rotary member geared to sai shaft at one end of the path of movement ol the tool holder, a reciprocating member geared to the rotary member. saidy reciprol eating member having an adjustable stopengaging surface, and an adjustable member having a series of stops to be selectively engaged j by said ret'fijn-ocating member, thereby lor-king the screw against rotation and stopping the 'feed at a predetermined position ot the tooldmldcr.

2G. In a device oi the nature disclosed. 'a support, a t'eed sha'l't thereon, a tool holder guided on the support and engaging the screw, a rotary member geared to said shaft at one end of the path ol movement', of the tool holder, a reciprocating member geared to the. rotary member, an adjustable member having a. series of dill'crcnt length fixed stops and an adjustable stop adapted to be selectively engaged by said reciprocating member, thereby lot-icing the screw against rotation and stopping the lt'eed atpredetermined positions nl the tool holder.

Li'. device adapted l'or connection to a ilcrd shaft. rtnnprising mechanism operated by said shaft, having driven member miv Csi

moved in directions corresponding to the.

of movementof said driven member rendernig said mechanism inoperative or operative v as said stops are shifted into or out of position.,

28. In a device of the nature disclosed, a support. a tool-holder guided thereon, a feed screw shaft on the support engaging the tool-holder, a non-rotatable reciprocating member on the support in front of the-,toolholder guide, rectilinearly movable transversely to said shaft, motion transmission connection bet-Ween said member and shaft, adapted to interlock when the movement of the reciprocating member is resisted, and a series of adjustable stops to be engaged by said reciprocating meinber. i

In a device of the nature disclosed, a

support. 'a toollholder guided thereon, a feed scrciv shaft on the support engaging the tool-holder, a rotary member havil g angularrly disposed rotary motion tran mission connect-ion with the shaft, a reciprocating` member movable transversely to thle shaft having intermesliing motion transmission connection with the rotary member converting the rotary into rectilinear motion, fand a stop for said'reciprocating member, lsaid stop, rotary and reciprocating memberh being mounted on the support in front of the i tool holder guide.

80. In a vdevice of the class described, a support, a tool-holder guided thereon, a feed screw shaft on the support engaging `the tool-holder, a rotary member geared to the shaft to rotate at right angles thereto, a reciprocating member geared to the rotary, member to move transversely to the'shaft, and stop disl-:s adjustable in the path of movement of the reciprocating member, said members and stops being held b the support at one end of the tool holder guide.

3i. In a device of the nature disclosed, a support, a feed shaft, a member movable longitudinally of and operated by one portion of said shaft, a member movable transversely of and operated by another portion of said shaft, and a stop for said trans.- vci'sely moving member adapted to lock said shaftagainst rotation to arrest the feed of the longitudinally moving member at predetermined points.

In a device of the nature disclosed, a support.y a tool-holder, a feed screiv shaft, a rotary member operated by the feed screw shall, at end of the path of movementof thc tool-holder, means for rendering said rotary member inoperative, a non-rotatablel member to be roctilineally reciprocated by said rotary member, and a stop for said member to be moved resisting the feed iniliicnce and interlocking the shaftagainst -rotation, thereby arresting the movement of the tool-holder at positions determinedby the pointof contact of said stop andthe member to be moved. y

33. In a device of the nature disclosed,a support, a feed screw shaft, a tool-holder on 4the support adjusted'by said shaft, a ro-I tary member on the outer end'of said shaft, a casting secured at the said outer end, y.and formed with a sleeve transverse to-,said

shaft, a spindle lpassingy through said sleev;e,

a second rotary element held by Said sleeve and turning 1n said spindle, having an angii larly intermeshing surface with the first rotary member, a reciprocatingmember on said sleeve, ysaid second rotary member `and recil'arocating member having interineshing surfaces converting the rotary into rectilineal movement, disks on theends of said spindle, and stops on said disks adapted `to be selectively alined inthe path of movement of the said reciprocating member whose movement is to be arrested to lock the feed screw shaft against rotation.

34. A device of the nature disclosed com- .bimng actuating mechanism, means limiting the movement thereof at a plurality of siiccessively availablepfixed stations, and a supportmoved by saidmechanism .independently of said means.

35. In a device of the nature disclosed, a shaft, a work performing member and a feed controlling member,independently operated by said shaft, and means for siiccessively arrest-ing the movement of the feed controlling member in anyone of a series of predetermined, fixed positions, thereby locking the shaft against rotation and stopping the Work performing member in a. series of predetermined positions.

3G. In a device of the nature disclosed, a support, a feed mechanism therefor and a controlling mechanism operated by said feed mechanism independently of said support, i' means-successively available in predetermined fixed positions for rendering the feed mechanism inoperative..

37. In ya device of the nature disclosed, a shaft, a primary work performing member operated by said shaft, a secondary feed controlling' inenibcfr also operated by said shaft, and a plurality of successively available fixed stops for arresting the movement of the secondary member, thereby rendering the shaft inoperative.

38. In a device ofthe nature disclosed,'a shaft, a primary work performing member operated by said shaft, a secondary feed controlling member also operated by said shaft in either direction o-f shaft rotation, and a plurality of successivelyavailable fixed Sto-ps for arresting tlieniovement of the secondary member in either direction of its movement, thereby rendering the shaft inoperative.

39. In a device of the nature disclosed, a feed mechanism, a first member `operated ing the movement thereof at a plurality of successively available xed stations, a support moved by said mechanism independently of sald means, and mechanism for rendering said means operative orinoperative.

4:1. In a device of the nature disclosed, a feed mechanism, a first member operated thereby, a second y member aiso operated thereby, means for moving a series of abutments successively into and out of the patli of movement o said secondv member, the

feed mechanism being rendered inoperative or operative as said abutments are moved into or out of position, and means forvcoiinectin@ or disconnectingl said second member reative to the feed mechanism, thereby rendering said stop mechanism operative or inoperative.

In testimony whereof, I have hereunto set my hand.

WiLLiAM soriiiLLeNsAcH. Witnesses: i

'OLIVER B. KAISER, CLARENCE B. FOSTER. 

